30+ Sales & Service Engineer Interview Questions and Answers

Sealing materials have various properties that determine their effectiveness in preventing leakage and maintaining integrity.

• Chemical resistance: Sealing materials should be resistant to the chemicals they will come into contact with.

• Temperature resistance: They should be able to withstand the temperature range of the application without degrading.

• Compression set: The ability to recover after compression is important to maintain a tight seal.

• Flexibility: Sealing materials sho...read more

Star Delta starters are used to reduce the starting current of induction motors.

• It consists of three contactors and a timer.

• During starting, the motor is connected in star configuration to reduce the current.

• After a set time, the motor is switched to delta configuration for normal operation.

• Used for high power motors to prevent damage to the motor and electrical system.

• Diagram shows three contactors and connections between them.

The choice of seal material depends on factors such as temperature, pressure, chemical compatibility, and application requirements.

• Consider the temperature range the seal will be exposed to

• Evaluate the pressure the seal will need to withstand

• Assess the chemical compatibility of the seal material with the fluid or gas being sealed

• Take into account the application requirements, such as wear resistance or flexibility

• Consult industry standards and guidelines for seal material sel...read more

Guidelines to follow before starting a machine

• Check if all safety guards are in place

• Ensure that all electrical connections are secure

• Check if all moving parts are lubricated

• Verify that the machine is clean and free from debris

• Ensure that all personnel are clear of the machine before starting

Electrical panels used vary depending on the application and industry.

• Residential panels: 100-amp and 200-amp service panels

• Commercial panels: 400-amp and 600-amp service panels

• Industrial panels: 800-amp and above service panels

• Specialty panels: such as generator transfer switches, lighting control panels, and motor control centers

To find the problem of any machine equipment, one can follow these steps:

• Start by gathering information about the issue from the user or through observation.

• Perform a visual inspection to identify any visible signs of damage or malfunction.

• Check for error codes or warning indicators on the equipment's display or control panel.

• Use diagnostic tools or instruments to measure and analyze various parameters.

• Refer to the equipment's manual or technical documentation for troubleshoo...read more

Andrology is the medical specialty that deals with male reproductive health.

• Andrology focuses on the study, diagnosis, and treatment of male reproductive system disorders.

• It covers a wide range of topics including male infertility, erectile dysfunction, prostate cancer, and sexually transmitted infections.

• Andrologists may perform procedures such as vasectomies, sperm analysis, and hormone replacement therapy.

• Andrology is closely related to urology, but with a specific focus o...read more

SGPT is an enzyme found in liver cells that is used to diagnose liver damage and disease.

• SGPT stands for serum glutamic pyruvic transaminase.

• It is also known as alanine aminotransferase (ALT).

• Elevated levels of SGPT in the blood can indicate liver damage or disease.

• Hematology and biochemistry are branches of medical science that deal with blood and its components.

Proper leveling of knitting machine is crucial for its efficient operation.

• Check the machine's manual for specific instructions.

• Use a spirit level to ensure the machine is level in all directions.

• Adjust the machine's feet or base as needed.

• Check the machine's alignment with other machines in the production line.

• Regularly check and adjust the machine's level to maintain optimal performance.

I have knowledge in servicing various industrial automation products such as PLCs, HMIs, and servo drives.

• PLCs

• HMIs

• Servo drives

The number of pumps used to spray chemicals in fields varies depending on the size of the field, type of crops, and spraying equipment.

• The number of pumps can range from one to multiple pumps depending on the size of the field.

• Some farmers may use a single pump for smaller fields, while larger farms may require multiple pumps for efficient spraying.

• The type of crops being sprayed and the spraying equipment being used also impact the number of pumps needed.

• Factors such as the ...read more

Instrument calibration is required to ensure accurate and reliable measurements.

• Calibration corrects any deviations in the instrument's readings

• It ensures that the instrument is operating within its specified range

• Calibration is necessary for compliance with industry standards and regulations

• It helps to maintain the quality of the product or service being produced

• Regular calibration can extend the lifespan of the instrument

IVD products are medical devices used for in vitro diagnostic testing of biological samples.

• IVD stands for In Vitro Diagnostics

• IVD products include reagents, instruments, and systems used for diagnostic testing

• Examples of IVD products include blood glucose meters, pregnancy tests, and HIV tests

• IVD products are regulated by the FDA in the United States

Gas analyser is crucial for monitoring emissions and ensuring compliance with environmental regulations in power plants.

• Gas analyser measures the concentration of various gases in the flue gas emitted from the power plant.

• It helps in monitoring emissions of harmful gases like SOx, NOx, CO, and CO2.

• Gas analyser also helps in optimizing combustion efficiency and reducing fuel consumption.

• It ensures compliance with environmental regulations and avoids penalties and fines.

• Gas ana...read more

The question covers three topics - working of engine, Pascal law, and transmission.

• The working of an engine involves the combustion of fuel to produce energy that powers the vehicle.

• Pascal's law states that pressure applied to a confined fluid is transmitted equally in all directions.

• Transmission is the mechanism that transfers power from the engine to the wheels of the vehicle.

• There are different types of engines such as petrol, diesel, electric, and hybrid.

• Transmission can ...read more

Yes, I have a keen interest in the ship building industry.

• I have always been fascinated by the engineering and design that goes into building ships.

• I have researched and followed the latest developments in the industry.

• I have experience working with ship building companies and have enjoyed learning about the process.

• I believe that the ship building industry plays a crucial role in global trade and transportation.

Spraying chemicals on plants helps protect them from pests, diseases, and weeds while promoting healthy growth.

• Spraying chemicals can help control pests that damage plants, such as insects and rodents.

• Chemicals can also prevent diseases from spreading among plants, keeping them healthy.

• Weeds can be controlled through chemical sprays, allowing the desired plants to thrive without competition.

• Fertilizers can be sprayed to provide essential nutrients for plant growth and develop...read more

O-rings are used as seals to prevent leakage of fluids or gases in various applications.

• O-rings are circular rubber rings that are used as seals in various industries.

• They are used to prevent leakage of fluids or gases in hydraulic systems, engines, pumps, and other machinery.

• O-rings are also used in plumbing, automotive, and aerospace industries.

• They come in different sizes and materials depending on the application.

• Examples of materials used for O-rings are nitrile rubber, ...read more

Hydraulic refers to the use of fluids to generate, control, and transmit power.

• Hydraulic systems use a liquid, usually oil, to transmit power.

• The fluid is pressurized and then used to move pistons or other mechanical components.

• Hydraulic systems are commonly used in heavy machinery, such as excavators and cranes.

• They are also used in brakes and power steering systems in cars.

• Hydraulic systems are efficient and can generate a lot of power with relatively small components.

The charging process involves the transfer of electrical energy to a battery or device.

• Charging typically involves connecting a power source to the battery or device.

• The power source provides a higher voltage than the battery or device, causing current to flow into it.

• During charging, the battery or device undergoes chemical reactions that store energy for later use.

• Different charging methods exist, such as constant current charging or trickle charging.

• Charging time depends o...read more

Capacitors store and release electrical energy in electronic circuits.

• Capacitors store electrical energy in an electric field

• They can release the stored energy when needed

• Capacitors are used in filtering, timing, tuning, and power factor correction in electronic circuits

SMPS stands for Switched Mode Power Supply, which is a type of power supply that uses switching devices to convert electrical power efficiently. PCL stands for Printer Command Language, a language used to control computer printers.

• SMPS is a power supply that converts electrical power efficiently using switching devices.

• PCL is a language used to control computer printers and send commands for printing tasks.

My strength is my ability to build strong relationships with customers and provide exceptional service.

• Excellent communication and interpersonal skills

• Ability to understand customer needs and provide tailored solutions

• Strong problem-solving and troubleshooting skills

• Proactive and self-motivated

• Ability to work well under pressure and meet targets

• Knowledge of the product/service being sold

• Ability to handle objections and negotiate effectively

Signal isolators are used to protect sensitive equipment from electrical noise and interference.

• Signal isolators provide electrical isolation between input and output signals.

• They help prevent ground loops and reduce the risk of damage to equipment.

• Signal isolators can be used in various applications such as industrial automation, process control, and telecommunications.

• They are commonly used in situations where there is a need to transmit signals over long distances.

• Signal i...read more

AC voltage can be converted to DC voltage using a rectifier circuit.

• Use a rectifier circuit to convert AC voltage to DC voltage

• Rectifier circuits can be half-wave or full-wave

• Examples of rectifier circuits include diode rectifiers and bridge rectifiers

Components of hydraulics include fluid, pump, valves, actuators, and reservoirs.

• Fluid: hydraulic oil or water

• Pump: converts mechanical energy into hydraulic energy

• Valves: control the flow and pressure of the fluid

• Actuators: convert hydraulic energy into mechanical energy

• Reservoirs: store the hydraulic fluid

UPS stands for Uninterruptible Power Supply, a device that provides emergency power to a load when the input power source fails.

• UPS ensures continuous power supply during power outages

• It protects electronic devices from power surges and fluctuations

• UPS can be used for computers, servers, networking equipment, and other critical devices

IGBT switch stands for Insulated Gate Bipolar Transistor switch, which is a power semiconductor device used for switching applications.

• IGBT switch is a type of power semiconductor device used for high power switching applications.

• It combines the advantages of both MOSFET and bipolar junction transistor (BJT) technologies.

• IGBT switches are commonly used in applications such as motor drives, power supplies, and inverters.

• They offer high efficiency, fast switching speeds, and hi...read more